Machine for applying adhesive to strip materials



Nav. 23, 1943.A y J. ET'rL 2,335,176

MACHINE FOR APPLYING ADHESIVE T0 STRIP' MATERIALS Filed April so, 1957 2 sheets-sheet 1 hmmwwmm, N si INVENTOR J. ETTL Nov. 23, 1943.

MACHINE FORVAPPLYING ADHESIVE TO STRIP MATERIALS Filed April 50, 1957 2 Sheets-Sheet 2 lNvENToR Jaren/Z777. BY

v @MwZg/YM v A ORN YS Patented Nov. 23, 1943 MACHINE FOR APPLYING ADHESIVE '10 STRIP MATERIALS Joseph sul, Plainnela, N. J., assigner to rotdevin Machine Company, Brooklyn, N Y.. a corporation of New York Application April 30, 1937, Serial No. 139,907

26 Claims.

This invention relates to improvements in machines for handling strip material and is particularly directed to machines for applying adhesive material, such as glue, varnish and the like, to the face of paper strips or other material feed through the machine. L

More specifically, the invention relates to machines of the character'indicated wherein the 4material being applied to the strips is heated and the strips to which the material is applied are likewise heated as the same pass through the machine.

One of the objects of the present invention is the provision of-a machine ofthe character indicated wherein heatedfluid,4 such as oilffor example, is circulated in such a manner'as properly to heat the strips asthe same are passed through the machine to set the lglue or varnish which has been applied thereto. f

Another object of the invention resides in the provision of means for maintaining the strips heated until the same .pass out of the machine mounted on a vshaft 40 which is driven by means of a sprocket chain 42 from the shaft 6. 'I'he adhesive-applying roller A38 receives the adhesive from a roller 44 which dips into a tank 46 formed in the concaved cover of an enclosed heated oil tank 48 which will be described presently.

A table 50 is provided for feeding the strips of material to the machine. This table is supported at one end by the frame 2 of the machine and at its other end by a support 52. As the strips are fed from the table between the upper feed roller lI8 and the blanket roller 24 the blanket 26 contacts the lower face of the strips and applies adhesive thereto. As the stripspass between the rollers the forward end thereof is gripped by a gripper 54 carried by the upper feed roller in the usual manner and conveyed about the-feed rollerv I8 and deposited on a conveyorV belt 56, which conveys the sameout of the machine. Y

Theblanket roller of the present invention is -enclosed in a cylindricalhousing 60, provided to a chilling device where the glue or varnish is finally set. y

Other objects ofthe `present invention will be r manifest from the following description and the accompanyingdrawings, in which I' Fig. 1 is a side elevation 'of my improved device;

Fig. 2 is a plan view of the same with the upper roller and other parts removed-.for clarity of illustration;

Fig. 3 is a plan view of the machine; and

Fig. 4 is,a lsectional view of the heated blanket I roller.

Referring to the drawin-gs in detail: `2 designates a frame or support for the device having a pulley 4 mounted on a shaft 6 and driven from a suitable source (not shown) through a belt 8. The shaft 6 carries a pinion I Il meshing with another pinion I2 which in turn is in mesh with a gear I4 on a roller I8. v

The gear I4 meshes With a gear 20 mounted on shaft 22` carrying a lower feed roller or blanket roller 24. This blanket roller is provided with a removable blanket 26, secured at one end to the roller by a clamp 28 which is pivoted at w30 and latched in clamping position by means of latch 82. The other end-of the blanketis wound on a. rod 34 having a pawl and ratchet arrangement 36 associated therewith for the purpose of tightening the blanket about the roller.

I'he blanket 26 receives adhesive such as glue with a cover or door 62 hinged thereto at64 to provide ready access to the blanket. This cover is provided with electric heating elements 66 receiving current from any suitable source of power through conductors 68. The cylindricalv housing 60 also encloses a series of heating coils 1.0 through which heated oil or other uid is circulated. The electric heating elements 66 and the heating coils 10, it will be appreciated, will l maintain the blanket 26 in heated condition durshaft I6 carrying upper feed ing the rotation of the roller. 'I'he upper feed roller I8 is provided with ahinged cover or door 'I2 similar to the door 62 o f the blanket roller 24 whereby inspection may readily be'made. I

As heretofore mentioned, one of the objects of the present invention resides in the provision of means for circulating heated uid such as oil through the machine. The oil is heated in the closed tank 48 by means of an immersed electric heating element 16 which receives its energy from any suitable source through the conductors 15. A thermostatic switch may be provided in housing 'Il for regulating or controlling the heat of the fluid in the tank 48.

A fluid conduit I8 leads from the bottom 4of I after described to be drained of oil. Another branch line 90 leads to one end of the hollow shaft 40 of the adhesive-applying roller 38, the heating fluid passing out of this shaft at the other end through a'coiled conduit 92 connected to one end of hollow shaft 84 of the roller 44, thence through the conduit 96 back to the tank 48. Another branch line leads from the pump 80 to the conduit |00, one branch |02 of which leads through the heating coils in the blanket roller housing, thence through conduit |04 into the return line |06 and back to the tank 48. The other branch of the conduit |00 leads to the hollow shaft 22 of the blanket roller and as shown in Fig. 4 communicates with four branches |01, each leading to one of four chambers |08 in the blanket roller. The fluid passing intothese closely surrounding a major portion of the periphery of said roller, means` for circulating heated fluid through said roller to heat the interior and exterior `of said roller.

2. A machine of the class described, comprising in combination a rotatable blanket roller, a

cylindrical housing closely surrounding said chambers serves to heat the blanket roller from l the interior and passes out of the chambers through branches |09 to. return line |06 back to the tank 48. The tank 48 may be drained at I0 when the pump 80 is vnot in operation. The tank 48 is supplied with oil or other fluid from the ller tank ||2 which has a conduit H3 in its lower en'd in Vcommunication with the return line |06 leading to the tank 48. The ller tank is also provided with an overflow line H4 communicating directly with the tank 48.

When the strips of material pass through the feed rollers and-I are deposited on the conveyor belt 56 they are subjected to further heat treatment. For this purposey I provide a heater H6 which is mounted on rails I|8 directly above the conveyor belt 56. This heater receives its current through conductors |15 and may be controlled by thermostat |11.

roller, stationary coils adjacent said roller, electric heating elements adjacent 'said housing conduits in said roller, and means for l.circulating heated fluid through said coils 'and through said roller conduits to heat the interior and exterior of said roller, said electric heating elements complementing the said coils in heating the exterior of said roller.

3. A machine of the class described, comprising in combination a blanket ,-roller, chambers therein, an enclosed fluid tank, means'for heatl ing the fluid in saidtank, coils adjacent said roller, conduits communicating with said tank coils and chambers, and a-pump for circulating heated fluid from said' tank tosaid chambers and coils and back to said tank to-heat said roller interiorly` and exteriorly. f l

4. A machine of the class described, comprising in combination a hollow blanket roller, a 1 hollow adhesive-applying roller for applying adhesive to said blanket roller, anenclosed fluid tank', a concavedcover forsaid'tank containing adhesive, a hollow doctor roller in'said adhesive 'for transferring adhesive to said adhesiveapplying roller, means for heating said tank to heat the iluid therein and the adhesive, conduits The strips pass from the conveyor beltl 56 to Y' another conveyor belt |20, and as they are received by this last-mentioned belt are subjected to a chilling action to finally set the adhesive which'has been applied thereto. |22 designates the chilling unit which may be of any suitable type and which is mounted on a bracket |24 and hinged to the' machine frame, the other end of the bracket |24 being supported on an adjustable bracket I26'whereby the chilling unit may be moved toward andv away from the conveyor belt |20.

'From the foregoing it will be appreciated that when the oil in the tank 48 is heated by means of the heating element 16 the heat will be trans- .ferred to the concaved cover containing the adhesive whereby the same Will be maintained in a heated condition. The oil, as will be appreciated, is pumped from the tank through the various conduits described for the purpose of heating the blanket and the various rollers men, tionedwhen the machine is in operation., The heating elements 66 in the cover of the blanket roller are electric heating elements. I prefer this arrangement rather than employing the heating pipes in the cover as a more convenient form. It will be appreciated, however, that the vheating elements 66 will provide a continu-ity of heating. surface for the blanket during its rotation.

Itis to be noted thatl while I have rilustrated and described a. preferred embodimentof my invention, I do not wish to be limited to any specic form -as various modifications and" changes may be made therein without departing from thespirit and scope of my invention.

What I claim is: 1. 'A machine of the class described, comprising in combination a hollow blanket roller, coils leading from said tank to .theinterior of said hollow rollers, and means for circulating said.` vheated fluid through-said conduits to heat said rollers.

5. A machine of the class described, comprising in combination a blanket roller, chambers therein, an enclosed fluid tank, Vmeans for heating the fluid in' said tank, a ller tank for main- *taining said uid tank filled, conduits communi-- catingwitn said tank and chambers, and a pump* fort' circulating heated fluid from said tank -through said chambers and back to said tank to heat said roller.

6. A machine of the class described, compris'- ing in combination ,a blanket roller, a housing therefor, a movable cover forsaid housing, electric heating elements in said cover, fluid circulating coils in said housing, and means for circulating'heated uid through said coils, said electric heating elements and said coils heating said blanket roller.

7; A machine of the class described, comprising in combination a blanket roller, av housing therefor, a hinged cover for said housing, elec'- tric heating elements in-said cover, fluid circulating coils in said housing, ahollow adhesiveapplying roller for applying adhesive to said blanket roller, and means for circulating heated fluid through said blanket roller, coils and adhesive-applying rollerA to heat the same.

8.. A machine of the class described, comprising in kcombination a feed roller, a blanket roller, a housing for each of said rollers, a hinged vcover for each of said housings.. electric heating elements in the cover of the blanket roller housing, fluid circulating coils in said blanket roller-hous-A ling, and means for circulating -heated lluid through said coils, said electric heating elements and said coils heating said blanket roller and strips of material fed through said rollers, the

coils and through said v housings serving to maintain heated air adjacent the rollers during the passage of the strips.

9. A machine of the class described, comprising in combination a blanket roller, a housing therefor, a hinged cover for said housing, electric heating elements in said cover, fluid circulating coils for said housing, a hollow adhesive-applying roller for applying adhesive to said lblanket roller, an adhesive container, a fluid container, means for heating said containers, and means for circulating the heated fluid through said blanket rollerhcoils and the adhesive-applyingrollerto maintain the adhesive in heated condition during the application of the adhesive to strips of material fed through the machine.

10. In a'machine of the class described, the combination of a feed roller, a blanket rollerfor feeding strips of material through the machine, housings for each of said rollers, a movable cover for each of said housings, heating elements in the cover ofthe blanket roller housing, heating coils in the blanket roller housing, an adhesive-applying roller for applying adhesive to said blanket roller, a conveyor belt for receiving the treated tric' heating unit for heating the strips as the same are deposited on said conveyor belt.

11. A coating. machine comprising a backing cylinder, a coating applying cylinder, a receptacle for coating material, a dipping roller dipping into said receptacle, a transfer roller fed by said dipping roiler for transferring the coating material therefrom to s aid coating applying cylinder, heating means for said receptacle, dipping roller and transfer roller, said means being connected in series, means for circulating uid through said heating means and an expansion element in the fluid circuit situated between said dipping roller and said transfer roller.

roller, a housing therefor, a movable cover for p said housing, electric heating elements in said cover, heating means in said housing, said electric heating elements and said heating means heating said coating roller. I

17. A coating `machine comprising a backing roller, a coating roller, a housing for each of said rollers, a hinged cover for each of said housings, electric heating elements in the cover of the coating roller, heating means in said coating roller -strips of material fromsaid feed roller, an elec-I housing, said electric heating elements and heating means heating said coating roller, and strips of material fed through said rollers, the housings serving to maintain heated air adjacent the rollers during the passage of the strips.

18. A coating machine comprising a backing roller, a coating roller, a housing for each of said rollers,'a hinged cover for each of said housings,

heating means in the cover andhousing of the coating roller, said heating means heating said coating roller, and strips of material fed through saidrollers, the housings serving to maintain 5 -heated air adjacent the rollers during the passage 12. A coating machine comprising a backing 40 cylinder, a coating applying cylinder, an oil supply, a receptacle for coating material having a.l jacket which'forms a reservoir, a conduit confor heating the oil in said reservoir, a, hollow transfer roller, ahollow dipping roller dipping into said receptacle, automatic means to maintain the oil at a predetermined temperature, means to connect said dipping roller, and said transfer roller to said supply, means to cause the heated oil to circulate through said means, saidrollers and said reservoir, and expansion means'in said connecting means situated between said dipping roller and said transfer roller.

'lf 13. In a coating machine, a backing cylinder; s a coating-applying cylinder, a receptacle for'coating material, means for heating the coating materiaL, a roller dipping into said receptacle, aA

transfer roller fed by said dipping miler for o0 transferring the 4coating material therefrom tosaid coating-applying cylinder, means which par tially enclose' said coating-applying` cylinder,

heating mean's within and carried by said enclosf necting said reservoir to said oil supply, means 45 of the strips. v

19. In a coating machine, comprising a backing cylinder, a coating-applying cylinder, a receptacle for coating material, means for heating the coating material, a roller dipping into said receptacle, a transfer roller fed by said dipping roller for transferring the coating-material therefrom to said coating-applyingcylinder, means which partially enclose said backing and coating-applying cylinders, heating means Within and carried by the means which enclose the coating-applying cylinder, whereby the exterior of Vsaid cylinder may be heated to a predetermined temperature. 20. In a machine of the class described havinga blanket cylinder and a backing cylinder contacting said blanket cylinder, a fountain, a fountain roller, a second roller fed by and in contact with said fountain roller and said blanket cylinder, heating means forv said fountaimfountain roller and second roller, said means being connected in series, means for circulating fluid through said heating means, and expansion elements in the fluid circuit allowing relative move-` ment between the said rollers.

21. 1n a machine of the class described having g a heated fountain for coating material, a, heated ing means, whereby the exterior of said cylinder *may be heated to a predetermined temperature. l

14. A coating Amachine, comprising a coating' roller, a housing therefor, a `movable cover for said housing, means for rotating saidroller in said housing,'heating means within said covered 7 housing in close proidmity to the periphery of said roller,` whereby the exterior of said roller is maintained at a predetermined temperature.

` 15. A coating machine comprising'a coating cylinder, a coating-applying roller, for applying' 75 fountain roller dipping into said fountainva backing cylinder, a. blanket cylinder contacting said backing cylinder, and a heated hollow transfer roller 4adapted to contactv the blanket ycylinder and the fountain roller, a. supply of heating fluid,

va fluid conduit'leading from-said supply to said heated fountain where the fluid is' heated, a fluid conduit connected to said fountain and rollers' for Asupplying heated fluid thereto, and expansion coils 4inzsaid conduit to allow said rollers to. move relatively to each other.

22. ,A machine of the class described comprising in combination a hollow blanket roller, a hol- ,low adhesive applying roller, a cylindrical housout of said chambers back to the said supply,

exterior of said roller.

ing closely surroundingsaid blanket roller, a supply of heated fluid, Coils adjacent said blanket roller and within said circulating said heated fluid to heat the same and through said coils to heat the surface of said blanket roller.

23. A machine of the class described, cornprising in combination a blanket roller, a cylindrical housing closely surrounding said roller, uid conduits in said housing, a supply of heated fluid, fluid chambers in said roller about the periphery thereof, conduits leading from said supply of heated uid to said fluid chambers and and means for circulating said heated uid through said conduits and chambers to heat said roller.

24. A machine of the cla's'sdescrib'ed, comprising in combination a blanket roller, a, housing therefor,l uid conduits in said housing in close proximity to the periphery of said roller, a plurality' of communicating fluid chambers within and adjacent the peripheral wallof said roller, a fluid tank, means conduits leading from said tank to -said fluid chambers and back to said tank, a pump for circulating heated fluid from said tank through said conduits and chambers to heat the interior and .25. In a device of the class described the cornblnation of an oil supply, a blanket cylinder, a

fountain for coating material, a hollow fountain for heating the fluid therein;

housing, and means for through said rollers of said blanket roller, and means to cause said oil to circulate through said jacket and the hollow transfer roller. l

26V. In a device of the class described the combination of an oil supply, a blanket cylinder, a

backing cylinder contacting said blanket cylinder,

a hollow transfer roller contacting-said blanket cylinder, a fountain for coating material,- a hollow fountain roller dipping into said fountain and contacting said transfer roller, a jacket for said i fountain which forms an oil reservoir, a conduit f connecting said reservoir with said oil supply,

means for heating the oil in said reservoir, automatic means for maintaining the oil at a predetermined temperature, a conduit providing a path for heated oil fromsaid reservoir to the interior of the fountain roller and transfer roller and providing a flexible connection between said rollersi means said conduits, hollow rollers and reservoir.

JOSEPH ETTL.

to cause heated oil to circulate through. 

